Improvement in corn-planters



- 'A., W. & J. CAMPBELL.

Seed-Planter.

Patented June 28, 1859.

Inventor,

.4 M vw/ z %Vitnesses= @WZZ UNTTED STATES PATENT OEEreE.

ALEXANDER CAMPBELL, wM. cAMPBELL, AND JAS. CAMPBELL, OF HARRISON, OHIO.

IMPROVEMENT IN CORN-PLANTERS.

, tion is represented as follows:

Figure 1 is a perspective view. Fig. 2 is a longitudinal section.

A is a rectangular frame.

P P are brackets attached on each side of the frame near the front and projecting downward, the lower parts of which form bearings into which the ends of the shaft Q are journaled.

K is a traction-wheel secured midway of the shaft Q.

E E are handles connected to the sides ofv the frame A, and supported at the rear end of the planter upon standards R R. p

O O are covering-shares, also secured to the rear-end of the frame, one a little in advance of the other.

B is the furrow-share, and D is a tube for conveying the grain into the furrow.

F is a hopper.

Gr is the hopper-floor, declining forward at an angle of about'thirty degrees. Dovetailed into this floor, and flush with it, are two slides or valves, H H, whose seed-apertures h h, when at the lower or resting positions of the slide, are in position to receive corn from the hopper, and are, when in the upper position of the slides or valves, brought immediately over the apertures g, which lead through the floor into the conveying-tube D.

J J are weighted rocking levers, the shafts of which work in bearings in the standards R It.

I Secured on the inside of the brackets P, above the shaft, are other braeketsin the form of a knee, into which vertical shafts M M are stepped at their lower ends, being at their upper ends journaled in the cross-bar S.

L L are friction-rollers attached to the wristpins of arms T on vertical shafts M M.

N N are cranks on the top of said shafts.

K K are inclined ridges concentric with the'traction-wheel, but of smaller radius, and projecting alternately from its opposite sides, the direction of theinclination of the ridgeswheel.

0 O are adjustable rods, connecting with the cranks N, and at the other end by hooks to the rocking levers J J, through which means motion is communicated to the slides or valves from the traction-wheel K.

U is a sliding board to regulate the quantity of grain falling from the hopperupon the valves, and also to shut it off entirely when necessary. In the lower end of each of the valves is a stud, t, which, when the valve is raised in position ior dischargingthe grain, retracts a spring, I, so as to arrest the momentum of the parts and assist in returning them to their normal position. The valves are held to their lowest position by their own gravity, or by springs, weighted levers, or both. This twofold arrangement of slides operating alternately is found of great practical benefit, from the fact that tiine is given to each to become charged with grain while the other is carrying up its load, and in view of this obcircuit on the wheel as to allow each slide or valve to remain perfectly quiescent during a longer period than that of its motion. The specific inclination of the slides is found to facilitate the removal of surplus grains by the back wall of the hopper, or by a brush where one is used. It will be seen that each seedaperture becomes visible to the operator just as it is on the point of discharging, so that he can see whether each slide is effective also, the levers J J assist the eye in judging of the being from the direction of motion of said ject the cams k occupy so small a part of theperfect action of the valves, and afford the In testimony of which invention we hereunmeans of the temporary working of the valves to set our hands. by hand should occasion require.

The following is What We claiinvas new and ALEXANDER CAMPBELL. of our invention herein and desire to secure by WILLIAM CAMPBELL. Letters Patent: JAMES CAMPBELL.

The described arrangement of the inclined slides or valves H H, levers J J, adjustable YVitnesses: rods 0 O, and cam-wheel K k, for the purpose DENNIS WEAD, explained. JOHN ASHBY. 

